On the Life of the Wise Man made perfect by Instruction or, on the Unwritten Law, that is to say, on Abraham (76-80)

For he has not chosen to be beheld by the eyes of the body, perhaps because it was not consistent with holiness for what is mortal to touch what is everlasting, or perhaps because of the weakness of our sight; for it would never have been able to stand the rays which are poured forth from the living God, since it cannot even look straight at the rays of the sun.

And the most visible proof of this migration in which the mind quitted astronomy and the doctrines of the Chaldaeans, is this. For it is said in the scriptures that the very moment that the wise man quitted his abode, "God appeared unto Abraham," [*] to whom, therefore, it is plain that he was not visible before, when he was adhering to the studies of the Chaldaeans, and attending to the motions of the stars, not properly comprehending any nature whatever, which was well arranged and appreciable by the intellect only, apart from the world and the essence perceptible by the outward senses.

But after he changed his abode and went into another country he learnt of necessity that the world was subject, and not independent; not an absolute ruler, but governed by the great cause of all things who had created it, whom the mind then for the first time looked up and saw;

for previously a great mist was shed over it by the objects of the [*]

For which reason it is said, not that the wise man saw God but that God appeared to the wise man; for it was impossible for any one to comprehend by his own unassisted power the true living God, unless he himself displayed and revealed himself to him.